alt Hacker News> The house wants you to lose money, but win just enough to think you have a chance
The house wants to make money overall. They know that individuals who make money tend to tell more friends than those who lose money - free advertising - so they want some people to make money. The total needs to be the average person loses money, but they need some individuals to make money.
On the small stakes systems they may even like it when they lose money like that - the dealer makes a big tip, and it encourages people (or their friends) to move to a higher stakes bet where they will lose more. They have to be careful about the law (which probably doesn't allow that manipulation if possible, even if it isn't in their favor), but again individuals with a story to tell are worth a lot more than than the money they lose on that story.
I'm not sure what point you're trying to make. If you're trying to suggest that the casinos train or encourage croupiers to cheat so that patrons get winning streaks, then what you're describing is a fantasy. Casinos are plenty successful without those sort of shenanigans.
If anything it's the opposite: pit bosses actively police croupiers who are spinning too consistently, and croupiers are encouraged to vary their spin throughout their session to avoid bias.